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Consolidated Statements of Operations - USD ($)
shares in Thousands, $ in Thousands
 12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Income Statement [Abstract]    
Revenues $ 20,582 $ 20,127
Cost of goods sold 19,417 18,233
Gross profit 1,165 1,894
Operating expenses    
Selling, general and administrative 12,918 11,019
Total operating expenses 12,918 11,019
Loss from continuing operations (11,753) (9,125)
Interest expense 396 916
Gain on sale of subsidiaries 4,207  
Other expense 2,817 64
Loss before taxes (10,759) (10,105)
Income tax expense (benefit) 1,278 (796)
Net loss from continuing operations (12,037) (9,309)
Discontinued operations (Note 7)    
(Loss) income from operations of discontinued business units (2,351) 4,744
Gain on sale of discontinued subsidiaries 13,686  
Income tax expense 737 1,099
Income from discontinued operations, net of income taxes 10,598 3,645
Net loss $ (1,439) $ (5,664)
Basic    
Loss from continuing operations (in dollars per share) $ (1.38) $ (1.07)
Income from discontinued operations (in dollars per share) 1.21 0.42
Net loss (in dollars per share) (0.17) (0.65)
Diluted    
Loss from continuing operations (in dollars per share) (1.38) (1.07)
Income from discontinued operations (in dollars per share) 1.21 0.42
Net loss (in dollars per share) $ (0.17) $ (0.65)
Weighted average common shares outstanding:    
Basic (in shares) 8,726 8,726
Diluted (in shares) 8,726 8,726